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| author | Kostya Serebryany <kcc@google.com> | 2013-02-19 11:29:21 +0000 |
|---|---|---|
| committer | Kostya Serebryany <kcc@google.com> | 2013-02-19 11:29:21 +0000 |
| commit | 6ecccdbb2bf24a011b9c8ecbdd39be5a02269670 (patch) | |
| tree | f463427001684e86ca0b07af6f858cf4060ab9c6 /test/Instrumentation | |
| parent | c61e83e6de778e5bd937e401564fe6bd0836b727 (diff) | |
| download | llvm-6ecccdbb2bf24a011b9c8ecbdd39be5a02269670.tar.gz llvm-6ecccdbb2bf24a011b9c8ecbdd39be5a02269670.tar.bz2 llvm-6ecccdbb2bf24a011b9c8ecbdd39be5a02269670.tar.xz | |
[asan] instrument memory accesses with unusual sizes
This patch makes asan instrument memory accesses with unusual sizes (e.g. 5 bytes or 10 bytes), e.g. long double or
packed structures.
Instrumentation is done with two 1-byte checks
(first and last bytes) and if the error is found
__asan_report_load_n(addr, real_size) or
__asan_report_store_n(addr, real_size)
is called.
Also, call these two new functions in memset/memcpy
instrumentation.
asan-rt part will follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175507 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Instrumentation')
| -rw-r--r-- | test/Instrumentation/AddressSanitizer/basic.ll | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/test/Instrumentation/AddressSanitizer/basic.ll b/test/Instrumentation/AddressSanitizer/basic.ll index c1b27a5902..2f1b79e504 100644 --- a/test/Instrumentation/AddressSanitizer/basic.ll +++ b/test/Instrumentation/AddressSanitizer/basic.ll @@ -96,5 +96,35 @@ entry: } ; CHECK: LongDoubleTest -; CHECK-NOT: __asan_report_store16 +; CHECK: __asan_report_store_n +; CHECK: __asan_report_store_n +; CHECK: ret void + + +define void @i40test(i40* %a, i40* %b) nounwind uwtable address_safety { + entry: + %t = load i40* %a + store i40 %t, i40* %b, align 8 + ret void +} + +; CHECK: i40test +; CHECK: __asan_report_load_n{{.*}}, i64 5) +; CHECK: __asan_report_load_n{{.*}}, i64 5) +; CHECK: __asan_report_store_n{{.*}}, i64 5) +; CHECK: __asan_report_store_n{{.*}}, i64 5) +; CHECK: ret void + +define void @i80test(i80* %a, i80* %b) nounwind uwtable address_safety { + entry: + %t = load i80* %a + store i80 %t, i80* %b, align 8 + ret void +} + +; CHECK: i80test +; CHECK: __asan_report_load_n{{.*}}, i64 10) +; CHECK: __asan_report_load_n{{.*}}, i64 10) +; CHECK: __asan_report_store_n{{.*}}, i64 10) +; CHECK: __asan_report_store_n{{.*}}, i64 10) ; CHECK: ret void |